V4L/DVB (9545): gspca: Add a flag for empty ISOC packets.

- This flag is needed by some subdrivers as tv8532 for start
  of frame detection.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 6 insertions, 5 deletions

diff --git a/drivers/media/video/gspca/gspca.h b/drivers/media/video/gspca/gspca.h
index 2ae1ad7c1483..50913caf1872 100644
--- a/drivers/media/video/gspca/gspca.h
+++ b/drivers/media/video/gspca/gspca.h
@@ -142,22 +142,21 @@ struct gspca_dev {
         char fr_q;                              /* next frame to queue */
         char fr_o;                              /* next frame to dequeue */
         signed char fr_queue[GSPCA_MAX_FRAMES]; /* frame queue */
-        char last_packet_type;
+        __u8 last_packet_type;
+        __s8 empty_packet;              /* if (-1) don't check empty packets */
+        __u8 streaming;
 
-        __u8 iface;                     /* USB interface number */
-        __u8 alt;                       /* USB alternate setting */
         __u8 curr_mode;                 /* current camera mode */
         __u32 pixfmt;                   /* current mode parameters */
         __u16 width;
         __u16 height;
+        __u32 sequence;                 /* frame sequence number */
 
         atomic_t nevent;                /* number of frames done */
         wait_queue_head_t wq;           /* wait queue */
         struct mutex usb_lock;          /* usb exchange protection */
         struct mutex read_lock;         /* read protection */
         struct mutex queue_lock;        /* ISOC queue protection */
-        __u32 sequence;                 /* frame sequence number */
-        char streaming;
 #ifdef CONFIG_PM
         char frozen;                    /* suspend - resume */
 #endif
@@ -166,6 +165,8 @@ struct gspca_dev {
         char nbufread;                  /* number of buffers for read() */
         char nurbs;                     /* number of allocated URBs */
         char memory;                    /* memory type (V4L2_MEMORY_xxx) */
+        __u8 iface;                     /* USB interface number */
+        __u8 alt;                       /* USB alternate setting */
         __u8 nbalt;                     /* number of USB alternate settings */
 };